|Residence||Miami Lakes, Florida|
|World Series of Poker|
Main Event finish
|World Poker Tour|
|Final table(s)||1 (+1)|
Brenes was the winner of a World Poker Tour title in 2005 and is the younger brother of professional poker players Humberto Brenes and Eric Brenes, the three of them together are known as "Godfather of Costa Rican players,". Brenes resides in Miami Lakes, Florida.
World Series of Poker
Brenes has cashed 22 times at the World Series of Poker (WSOP), making three final tables and finished as runner-up in two of them, the first was in the $3,500 No Limit Hold'em event where he finish runner-up to Mike Matusow in 1999  the next was to Jim Lester in the $3,000 Texas Fixed-Limit Hold'em in 2001.
Brenes has also cashed in the money twice at the WSOP Main Event, 24th in the 2001 event and 197th in the 2004 event.
World Poker Tour
Other poker events
On May 5, 2008, Brenes was a participant at the inaugural Latin American Poker Tour (LAPT) in the LAPT Rio de Janeiro event in Brazil and made the Final Table finishing fourth, earning $62,800 then later that year in August he finished runner-up at the LAPT Punta del Este $2,700 No Limit Hold'em Main Event earning an addition $127,625
- Wheeler, Lisa. "Alex Brenes". tioalex.com. Retrieved 2008-05-07.
- "Alex Brenes". worldpokertour.com. Retrieved 2008-05-26.
- Butt, Robert. "1999 World Series of Poker $3,500 No Limit Hold 'em event results". The Hendon Mob. Retrieved 2008-05-06.
- Butt, Robert. "$ 3,000 Texas Hold'em (limit) event results". The Hendon Mob. Retrieved 2008-05-06.
- Butt, Robert. "World Poker Tour Invitational - No Limit Hold'em event results". The Hendon Mob. Retrieved 2008-05-06.
- Butt, Robert. "Alex Brenes - Stats". The Hendon Mob. Retrieved 2008-05-07.
- World Series of Poker Earnings, worldseriesofpoker.com